HIV Strains: Types, Subtypes, Strains, and More - Healthline
Mar 5, 2021 · There are two different types of HIV. These are called HIV-1 and HIV-2. Although they may have similar names, these are actually two distinct types of virus. On a genetic level, HIV-2...
Types and Strains of HIV - WebMD
Aug 14, 2022 · There are two main types of human immunodeficiency virus -- HIV-1 and HIV-2. Both can lead to AIDS. However, they're very different from each other. HIV-1 is the most common type.
Subtypes of HIV - Wikipedia
The subtypes of HIV include two main subtypes, known as HIV type 1 (HIV-1) and HIV type 2 (HIV-2). These subtypes have distinct genetic differences and are associated with different epidemiological patterns and clinical characteristics.
About HIV | HIV | CDC - Centers for Disease Control and Prevention
Jan 24, 2024 · HIV is a virus that attacks the body's immune system. The only way to know if you have HIV is to get tested. There are many ways to prevent HIV, like using PrEP, PEP, condoms and never sharing needles. HIV treatment helps people live …
HIV/AIDS - Symptoms and causes - Mayo Clinic
Feb 9, 2024 · HIV is spread through contact with genitals, such as during sex without a condom. This type of infection is called a sexually transmitted infection, also called an STI. HIV also is spread through contact with blood, such as when people share needles or syringes.
HIV - Wikipedia
Two types of HIV have been characterized: HIV-1 and HIV-2. HIV-1 is the virus that was initially discovered and termed both lymphadenopathy associated virus (LAV) and human T-lymphotropic virus 3 (HTLV-III). HIV-1 is more virulent and more infective than HIV-2, [20] and is the cause of the majority of HIV infections globally.
Human Immunodeficiency Virus (HIV) Infection
May 7, 2024 · There are 2 HIV types, HIV-1 and HIV-2. HIV-1 causes most HIV infections worldwide, but HIV-2 causes a substantial proportion of infections, particularly in parts of West Africa ( 1 ). In some areas of West Africa, both viruses are prevalent and may coinfect patients.
HIV and AIDS - StatPearls - NCBI Bookshelf - National Center for ...
Jul 27, 2024 · Two main types of HIV include HIV-1 and HIV-2. Although their genomes are structurally similar, they diverge significantly at the amino acid level. The 2 viruses result from 2 different zoonotic transmissions of simian immunodeficiency viruses and, as a result, have substantial differences in their severity, transmissibility, and prognosis.
HIV and AIDS - World Health Organization (WHO)
WHO fact sheet on HIV and AIDS with key facts and information on signs and symptoms, transmission, risk factors, testing and counselling, prevention, treatment and WHO response.
Differences between HIV-1 and HIV-2 - Medical News Today
Jan 19, 2024 · HIV-1 and HIV-2 are the two main types of HIV. Most people with HIV have HIV-1. Genetic differences between the two viruses mean that diagnosis and treatment of HIV-1 and HIV-2 can be...